Carrier-controlling device for braiding machines



July 17,1923 1,462,213

A. PETERSEN CARRIER CONTROLLING DEVICE FOR BRAIDING MACHINES Filed Aug. 16, 1922 ..:::;r" 1-4:: 96'' 9a v f a? 1:, fill, I i 3 f if T 96 g9 70 alike? peZZsr-sen Patented July 17, 1923.

1,452,213" barren sraras PATENT OFFICE.-

ANKER PETERSEN, OF WINTHROP, MASSACHUSETTS.

GARRIER-CONTROLLING DEVICE FOR BBAIDING MACHINES.

'Application filed August 16, 1922. Serial No. 582,162.

To all whom it may concern I Be it known that I, ANKER PETERSEN, a citizen of the United States of America, and resident of lVinthrop, in the county of Suf- 5' folk and State of Massachusetts, have nvented new and useful Improvements 1n Carrier-Controlling. Devices for Braiding Machines, of which the following is a specification.

This invention relates to braiding machines of that type wherein two series of bobbins are caused torevolve in opposite directions for intertwining their yarns at a centrally disposed braiding point and more particularly to the driving means for the inner series of bobbin carriers.

The principal object of the present invention is to provide carrier driving means comprising an improved hold-back device for preventing overrunning of the carr1ers and so designed as to avoid the imposition of any undue frictional or bending stress upon the yarns of the outer series of bobbins as they pass below the carriers of the inner series.

In the accompanying drawings there is shown by way of example a preferred arrangement of parts by the employment of v which the above object may be attained, and in such drawings, I

Fig. 1 is a fragmentary diametral vertical cross section through a braiding machine of known type having the device of the present invention applied thereto,

Fig. 2 is a plan view of the parts shown in Fig. 1.

Fig. 3 is a plan view to larger scale illustrating a drive roll carrier frame forming a part of the present invention, the drive roll and its shaft being omitted.

Fig. 4 is a side elevation of the device shown in Fig. 3.

Fig. 5 is a transverse cross section on the line 55 of Fig. 3 showing the drive roll and the hold back roll in dotted lines; and

Fig. 6 is a diagrammatic elevation illustrating the arrangement of the braiding carrier and the drive roll and hold bacli' employed therewith.

The numeral 1 indicates a rotating frame or support comprising the cylindrical portion 2 upon which the carriers (not shown) of the outer series are mounted. Concentric with the part 2 is a stationary disc 3 provided with a track 4: for the inner supporting wheels 5 of the braidingcarriers 6 of the inner series. These brading carriers are provided with supporting wheels 8 at their outer ends which rest upon the bottom wall of a groove 9 in the member 2, the carriers thus being supported to revolve about the axis of the machine in a circular path. Each of the carriers is provided with a pair of retaining rolls 9 normally positioned within the groove 9 and which bear against the innerface of a ring 9 secured to the inner surface of the member 2. The carriers are also furnished with rolls 9 for engagement with the driving roll hereinafter described. A circular support 10 is arranged concentrically with the member 2 and is rotated oppositely to the latter member by any suitable form of drive mechanism such as is well known in the art. The support 10 is provided with a rim 10 to which a series of drive roll frames are secured. These frames each preferably comprises the opposed side members 11, 12 which at their inner ends converge'toward each other and which are connected at their outer ends by the end member 12. From the members 11, 12, ears 13, 14 respectively project, such ears having openings 15, 16 respectively for the reception of bolts 17, 18 by means of which the frames are secured to the rim 10 A- bearing boss 19 is secured to the converging ends of the side members 11, 12, and this boss has an opening for an antifriction bearing sleeve 20 provided with a journal opening 21. The end member 12 of the frame is also provided with a boss 23 having an opening in which is seated an antifriction hear ing sleeve 24: having a journal opening 25 ali ned with the opening 21. A shaft 26 is journalled in the openings 21 and 25 respectively, one end of the shaft projecting beyond the end member 12 of the frame. A friction roll 27 of felt or other suitable material is secured to the shaft 26 withinthe frame, while a driving roll'2S is secured to the shaft 26 at a point outside the frame. A friction ring 29 of suitable material suchas felt is supported upon a series of resilient fingers 3O projecting radially from the disc 8. This friction ring bears upon the friction rolls 27 of the several drive frames and thus causes rotation of the friction rolls 27 as the member 10 is rotated. Referring particularly to Fig. 6 it will be noted that the diameter of the roll 28 andthe position of its shaft is such that its upper element 31 lies in a plane below the plane of the lower element 32 of the roll 9" of the corresponding carrier.

The drive roll frame is provided with a pair of upstanding lugs 33, 3-il which are spaced apart and are provided with openings 35, 36 for the reception of a shaft 37 and a hold back roll 38 is mounted upon the shaft 37 between the lugs 33, 34-. This hold back roll is arranged at the advancing side of the drive roll frame, so that as the frame revolves the roll 38 always precedes the drive roll 28. The roll 38 is preferably of a diameter substantially smaller than that of the drive roll and its axis is so placed that, as indicated in Fig. 6, its upper element 39 lies in a plane slightly above the lower element 32 ot the roll 9 and well below the plane of the upper element 31 of the drive roll 28. By reason of the small diameter of the hold back roll 38, its upper element 39 lies substantially in the plane o1 the point of contact of such roll with the roll 9 t the carrier, this plane being indicated by the broken line X-Y.

The machine is provided as usual with a fixed outer cylinder at) having a cam groove -11 therein for controlling the thread guides or warp levers l2 of the outer series of carriers. These warp levers serve to move the threads of the outer series alternately above and below the carriers of the inner series, the threats passing through vertical slots such as $3 in the member 2. At the lower limit of movement of the warp levers d2, their guide eyes e14: lie substantially in the plane XY so that as the threads from such guide eyes pass to the braiding point they move freely over the hold back rolls 38 ot the several carriers without substantial deflection. Moreover as the upper elements of the hold back rolls are but slightly above the lower elements of the rolls 9 the threads are bent but slightly in passing below the rolls 9. Thus the employment oi the hold back roll 38 has little, it any, harmful action upon the warp threads such as might cause their breakage or abrasion, although the hold back roll positively prevents overrunning of the carrier as the machine is stopped. thereby avoiding snarling or tangling of the threads of the inner series of carriers. The device thus provided is of simple construction and may be applied to existing forms of braiding machine without substantial change in the latter. While as herein shown the drive roll carrier consists of an open frame, it is evident that substantially the same results might be obtained by the use of a carrier of other form and having other means for securing it to the rotating member of the braiding machine, and it is contemplated that any such changes may be made in the device herein illustrated as may be found desirable from time to time and as circumstances may warrant without departing from the spirit of the present invention.

What I claim and desire to secure by Let ters Patent of the United States is 1. A braiding machine comprising in combination a braiding carrier movable in a circular path, and drive means moving in a path concentric with that of the carrier and comprising a roll of relatively large diameter for pushing the carrier along its path, and a roll of relatively small diameter for preventing overrunning of the carrier when the driving means comes to rest.

2. A braiding machine comprising in combination a braiding carrier freely movable in a predetermined path, and driving means moving in a path parallel to that of the carrier and having a carrier drive member engageable with an element of the carrier for impelling it along its path, and a part also engageable with an element of the carrier for preventing overrunning of the latter, the point of engagement of said latter part with the carrier lying in a plane different from that of the point of engagement of the carrier drive member with the carrier.

A braiding machine comprising in combination a braiding carrier, a warp guide oscillating in a substantially vertical path, and drive means for the carrier comprising a member normally engaging an element of the carrier for pushing it along a predetermined path intersecting the path of the warp guide, and a hold back device engageable with an element of the carrier for preventing excess forward movement thereof along its path, the point of engagement of the hold back with the carrier lying substantially in the horizontal plane of the lower limit of movement of the warp guide.

l A braiding machine comprising in combination, a vertically oscillating warp guide, a carrier movable in a horizontal path, and drive means for the carrier comprising a drive roll engageable with an element of the carrier for pushing the latter along its path, and a hold back roll having the upper element of its peripheral surface disposed substantially in the plane of the lower limit of movement of the warp guide and below the upper element of the drive roll.

5. A braiding machine having in combination a vertically movable warp guide, a carrier movable in a horizontal path, and driving means moving in a path parallel thereto. said driving means comprising a freely rotating roller of relatively large diameter engageable with an elenient of the carrier for moving it along its path. and a. second roller of smaller diameter having the upper element of its peripheral surface in a plane below that of the driving roller,

said second roller serving to prevent overrunning of the carrier when the driving means is stopped.

6. A braiding machine having in combination bobbins moving in opposite directions in concentric circular paths, a carrier for the inner bobbin, said carrier having a roller journalled therein, a vertically oscillating warp guide for moving the yarn from the outer bobbin alternately above and below the plane of said carrier, and driving means for the carrier comprising a rotating frame having a drive roller journalled therein, the upper element of the peripheral surface of said roller being above the lower element of the roller of the carrier, said drive roller engaging said latter roller for pushing the carrier along its track, and a second roller of lesser diameter than the drive roller, also carried by the rotating frame and having the upper edge of its peripheral surface in a plane above the'lower element of the carrier roller and below that of the upper element of the drive roller.

7. A braiding machine having a rotating,

support and a drive frame secured thereto, said frame comprising an outer end memher and side members having their inner ends converging toward each other, a bear ing boss secured to the adjacent inner end portions of said side members, a bearing boss carried by the outer end member, a shaft journalled in aligned openings in said bosses, and a drive roll mounted upon said shaft.

8. A braiding machine having a rotating circular support and a series of drive frames mounted upon the edge portion of said support, each of said frames comprising ears having openings forthe reception of means for securing the frame to the rotating support, and means carried by each of said frames for supporting a drive roll shaft and a hold back roll, respectively.

9. A braiding machine comprising a rotating support, a drive roll frame secured to the support and having aligned bearing openings, a shaft journalled in said open ings, a drive roll secured to the shaft, and a hold back roll mounted upon the frame at a point in advance ofthe driving roll in the direction of rotation of the support.

10. A braiding machine having a rotating support and a frame secured thereto, said frame having a drive roll shaft journalled therein, a pair of lugs projecting from the frame, said lugs having aligned openings, a shaft secured in said openings, and a hold back roll mounted upon the said latter shaft between the lugs.

11. A braiding machine having a rotating support, a frame comprising spaced side members, means for securing said frame to the edge of the rotating support, a shaft journalled in the frame having a drive roll secured thereto at a point outside the frame, a second shaft carried by the frame, and a hold back roll of a diameter smaller than that of the drive roll mounted upon said second shaft.

Signed by me at Boston, Massachusetts, this ninth day of August, 1922.

rrNKER PETER-SEN. 

